
<div class="step_box">
  <div class="cross"></div>
  <div class="nav clearfix">
    <div class="myShopping line active">
      <div class="num">1</div><span>我的购物车</span>
      <div class="step_arrow"></div>
    </div>
    <div class="orderInfo line">
      <div class="num">2</div><span>订单信息</span>
      <div class="step_arrow"></div>
    </div>
    <div class="payOrder line">
      <div class="num">3</div><span>支付订单</span>
    </div>
  </div>
</div>